1. The government agency in the United Kingdom that is responsible for internal security and counterintelligence on British territory
   - Security Service [Brit], Military Intelligence Section 5 [Brit]

Type of: international intelligence agency

• Salafist Group
• salah
• Salah al-Din Battalions
• Salah-ad-Din Yusuf ibn-Ayyub
• salai
• salal
• Salam
• salamander
• Salamandra
• Salamandra atra
• Salamandra maculosa
• Salamandra salamandra
• Salamandridae
• salamandriform
• salamandrine
• salami
• salaried
• salary
• salary cut
• salary increase
• salaryman
• salat
• salchow
• sale
• sale in gross